Harvesting yeast/bugs from supplication

[Caucasian]

I bought a bottle of rr supplication with the intent of harvesting the yeast and bugs to make myself a small batch of sour ale. I'm not 100% sure how to harvest this type of yeast. Should i treat it differently because of the brett and other nasties in it?

 

[RosewaterFoundation]

I would just dump in the dregs. As I understand it, the culture has reached a certain "balance" between all the bugs and when you try to build it up, you risk one strain taking over another. That's just from the top of my head though.